Supplemental materials for "Thermodynamic stability of a cosmological SU(2)-weak gauge field" 0README.txt Calculations for Thermodynamic stability source Calculations_for_Thermodynamic_stability.pdf K(z) matrices.html K(z) matrices.ipynb K(z) matrices.pdf property_P.html property_P.ipynb property_P.pdf The Supplemental Material consists of a note, "Calculations for Thermodynamic stability of a cosmological SU(2)-weak gauge field", and two SageMath notebooks performing algebraic and numerical calculations and making plots, along with printouts of the notebooks. The Supplemental Materials are available at (1) arXiv.org as ancillary files associated with the paper (2) cocalc.com/dfriedan/DM/SM (3) physics.rutgers.edu/~friedan The SageMath notebooks can be run at cocalc.com or by installing SageMath from www.sagemath.org. SageMath is a free open-source mathematics software system. Using cocalc.com does not require an account. Paying for an account supports SageMath. See https://doc.cocalc.com/trial.html\#reasons-for-purchasing-a-subscription Open-source mathematics software such as SageMath is essential for scientific research. Scientific results must be open to scrutiny. Closed-source mathematics software blocks scrutiny. Daniel Friedan